A&B weather

0. The flood should occur in summer and autumn, and the temperature in the picture is below 0 degrees, which means it is winter, which does not meet the meaning of the question;

It, controlling the local weather system will bring the following weather: the temperature drops, there will be strong winds and precipitation, so it will not be a drought disaster, so it does not meet the meaning of the question;

C. According to the information analysis in the picture, the weather brought by controlling the weather system in this area in the first week is: the temperature drops, there are strong winds and precipitation weather; After crossing the border, the temperature dropped, the air pressure rose and the weather turned fine. According to the influence of this weather system on the weather, the cold front transit is analyzed. The maximum cooling range is -r0 on 3r day, and the temperature drops abnormally, resulting in cold wave weather, so it is correct.

D, landslides generally occur in mountainous areas, and there is no topographic information on the map, which does not meet the meaning of the question.

So choose: C.